Title :
Performance Improvement of Carbon-Nanotube-Incorporated Transparent Conducting Anode Film for Organic Device Application
Author :
Lin, Ke ; Kumar, Ramadas Senthil ; Cheng, Lai Szu ; Jin, Chua Soo
Author_Institution :
Inst. of Mater. Res. & Eng., Agency for Sci., Technol., & Res., Singapore
Abstract :
Carbon nanotubes (CNTs) were incorporated into indium tin oxide and polythiophene by mixing and then spin coating or screen printing to form the transparent conducting electrode (TCE). With only approximately 0.005%, by weight, of CNTs in the TCE, the sheet resistance was found to drop by about 25% to 40%, without any significant decrease in the transmittance. Organic light-emitting devices (OLEDs) were then fabricated using these composite TCEs as the anode. In comparison with a device without the CNTs, there was an increase in the current density for the same applied voltage, mainly due to the contribution of hole current. In addition, the mechanical strength was improved, as seen from bending test of the device.
Keywords :
bending; carbon nanotubes; current density; indium compounds; mechanical strength; organic light emitting diodes; semiconductor materials; transparency; C; bending test; carbon-nanotube-incorporated transparent conducting anode film; current density; indium tin oxide; mechanical strength; or screen printing; organic device application; organic light-emitting devices; polythiophene; screen printing; sheet resistance; spin coating; transparent conducting electrode; Anodes; Carbon nanotubes; Coatings; Conductive films; Current density; Electrodes; Indium tin oxide; Organic light emitting diodes; Printing; Voltage; Carbon nanotubes; indium tin oxide; mechanical strength; organic device; polythiophene; sheet resistance; transmittance;
Journal_Title :
Electron Devices, IEEE Transactions on
Conference_Location :
12/9/2008 12:00:00 AM
DOI :
10.1109/TED.2008.2007831
